Nicole Scherzinger may sing at Nelson Mandela's funeral.

The former Pussycat Doll has reportedly held a secret visit with the late revolutionary's daughters at London's Mandarin Hotel and they discussed a potential performance.

An insider told The Sun on Sunday newspaper: ''During the chat Nicole had with the daughters it was mentioned she should sing at his funeral, or at least be a very prominent guest.''

The 'X Factor' UK judge once sang for the political activist - choosing to perform 'Precious Lord' - but she recently joked he was less than impressed with her rendition.

She previously said: ''I had the honour of meeting him and I sang him my favourite hymn 'Precious Lord'.

''But I don't think he liked it as afterwards he said, 'Have you got anything else?' ''

A number of celebrities paid tribute when he passed away on Thursday (05.12.13), including Nicole's 'X Factor' boss Simon Cowell, who tweeted his thoughts.

He wrote: ''So sad to hear about Nelson Mandela. Rest in peace.''

Meanwhile, superstar Rihanna took to Instagram to pay her respects.

She said: ''One of the greatest men who's ever lived!!! #Legend. We will never forget the things this man has taught us, and we will never truly comprehend the level of strength that it took for him to endure many of his years!! Thank you #Mandela (sic)''